Load flow analysis using Newton Raphson method

Newton Raphson Method is an iterative technique for solving a set of various nonlinear equations with an equal number of unknowns.

• Newton Raphson method has quadratic convergence and hence it can be used in load flow problems
• It possesses quadratic convergence characteristics. Therefore, the convergence is very fast.
• The number of iterations is independent of the size of the system. Solutions to a high accuracy is obtained nearly always in two to three iterations for both small and large systems.
• The Newton Raphson Method convergence is not sensitive to the choice of slack bus.
• Overall, there is a saving in computation time since fewer number of iterations are required.